Neustar Toolkit-Based WHMCS Domain Registrar Module

I'm seeking a WHMCS module that facilitates direct connection between my .in domain registry and WHMCS. It's built on the Neustar toolkit for registrars. For reference, I've included a link to an existing module developed by another party: https://whmcsglobalservices.com/neustar-in-whmcs-domain-registrar-module/
I'm looking for a similar module without licensing restrictions and at a more affordable rate than the one listed.